Efficacy of a psychoeducative group program for caregivers of demented persons living at home: A randomized controlled trial. - Hébert,R.; Lévesque,L.; Vézina,J.; Lavoie,J-P.; Ducharme,F.; Gendron,C.; Préville,M.; Voyer,L.; Dubois,M-F. (J Gerontol B Psychol Sci Soc Sci, 2003)